udatraining.dyomin.com.udaproj1.MainActivity.java Source code

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Here is the source code for udatraining.dyomin.com.udaproj1.MainActivity.java

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/*
 * Copyright (C) 2014 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package udatraining.dyomin.com.udaproj1;

import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.app.ActionBarActivity;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;

public class MainActivity extends ActionBarActivity implements ForecastFragment.Callback {

    private final String LOG_TAG = MainActivity.class.getSimpleName();
    private final String DETAILFRAGMENT_TAG = "DFTAG";
    private boolean mTwoPane;
    private String mLocation;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        mLocation = Utility.getPreferredLocation(this);
        setContentView(R.layout.activity_main);

        if (findViewById(R.id.weather_detail_container) != null) {
            mTwoPane = true;
            if (savedInstanceState == null) {
                replaceDetailFragment(new DetailFragment());
            }
        } else {
            mTwoPane = false;
            getSupportActionBar().setElevation(0f);
        }
        ForecastFragment ff = (ForecastFragment) getSupportFragmentManager()
                .findFragmentById(R.id.fragment_forecast);
        ff.setUseTodayLayout(!mTwoPane);
    }

    private void replaceDetailFragment(DetailFragment df) {
        FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
        ft.replace(R.id.weather_detail_container, df, DETAILFRAGMENT_TAG);
        ft.commit();
    }

    @Override
    protected void onResume() {
        super.onResume();

        String location = Utility.getPreferredLocation(this);
        if (location != null && !location.equals(mLocation)) {
            ForecastFragment ff = (ForecastFragment) getSupportFragmentManager()
                    .findFragmentById(R.id.fragment_forecast);
            if (ff != null) {
                ff.onLocationChanged();
            }
            DetailFragment df = (DetailFragment) getSupportFragmentManager().findFragmentByTag(DETAILFRAGMENT_TAG);
            if (null != df) {
                df.onLocationChanged(location);
            }
            mLocation = location;
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            startActivity(new Intent(this, SettingsActivity.class));
            return true;
        }

        if (id == R.id.action_map) {
            openPreferredLocationInMap();
            return true;
        }
        return super.onOptionsItemSelected(item);
    }

    private void openPreferredLocationInMap() {
        String location = Utility.getPreferredLocation(this);

        // Using the URI scheme for showing a location found on a map.  This super-handy
        // intent can is detailed in the "Common Intents" page of Android's developer site:
        // http://developer.android.com/guide/components/intents-common.html#Maps
        Uri geoLocation = Uri.parse("geo:0,0?").buildUpon().appendQueryParameter("q", location).build();

        Intent intent = new Intent(Intent.ACTION_VIEW);
        intent.setData(geoLocation);

        if (intent.resolveActivity(getPackageManager()) != null) {
            startActivity(intent);
        } else {
            Log.d(LOG_TAG, "Couldn't call " + location + ", no receiving apps installed!");
        }
    }

    @Override
    public void onItemSelected(Uri dateUri) {
        if (mTwoPane) {
            Bundle args = new Bundle();
            args.putParcelable(DetailFragment.DETAIL_URI, dateUri);
            DetailFragment df = new DetailFragment();
            df.setArguments(args);
            replaceDetailFragment(df);
        } else {
            Intent intent = new Intent(this, DetailActivity.class);
            intent.setData(dateUri);
            startActivity(intent);
        }
    }
}